firebug: how to cd to an iframe

Question

I have a facebook canvas application that runs in an iframe. I would like to debug my page in firebug but can not get the javascript to scope to the iframe that is running my a

Answer 1

use one of these commands:

 cd(frames[0]) 
 cd(frames["iframe_canvas"])

and

 cd(top)

to return to the main window.

Still, due to a bug this currently doesn't work on cross-domain-iframes (http://code.google.com/p/fbug/issues/detail?id=3893). There are two test cases where you can test your evironment for both cases:

• https://getfirebug.com/tests/content/commandLine/cd.html (same domain, works for me: FF 3.6.13, FB 1.6.2)
• http://getfirebug.com/tests/issues/3893/issue3893.html (cross domain, fails)

Another possible source of surprise: if you execute more commands at once the cd command seems to not have an effect for the directly following commands:

 >>> cd(frames[0]); location.href;
 ["Current window:", Window cdFrame.html]
 "https://getfirebug.com/tests/content/commandLine/cd.html"
 >>> location.href
 "https://getfirebug.com/tests/content/commandLine/cdFrame.html"